Constantan alloy CuNi44

I. Sizes
Products CuNi44, constantan alloy
Shape Cold rolled steel 0.01~3*1.5~300*C
Flat Filament 0.01~3*1.5~300*C
Cold rolled wire Φ0.025 to 2.0mm*L
Cold rolled bar Φ2.0 to 12mm*L
Precision
Slitting strip Tk:0.01 to 3.0mm;
Width: 1.5 to 32mm;
------oscillate winding to greatly save the staff cost.
Surface for strip Bright
Package 1. Usual package: Pancake
2. Special package: Oscillate winding (max 500kgs/coil)
(production with high efficient to reduce staff cost)
Time of delivery About 25days
MOQ As per sizes

II. Chemical component& physical property
Grade CuNi1 CuNi2 CuNi6 CuNi8 CuMn3 CuNi10 CuNi14 CuNi19
CuNi23 CuNi30 CuNi34 CuNi44
chemical component

% Ni 1 2 6 8 10 14.2 19
23 30 34 44
Mn 3 0.3 0.5
0.5 1 1 1
Cu Bal. Bal. Bal. Bal. Bal. Bal. Bal. Bal.
Bal. Bal. Bal. Bal.
max temperature
℃ 200 200 220 250 200 250 300 300 300
350 350 400
Density g/cm³ 8.9 8.9 8.9 8.9 8.9 8.9 8.9 8.9
8.9 8.9 8.9 8.9
Melt point ℃ 1085 1090 1095 1097 1050 1100 1115 1135
1150 1170 1180 1280
Resistivity
μΩ ·m(20℃) 0.03±
10% 0.05±
10% 0.10±
10% 0.12±
10% 0.12±
10% 0.15±
10% 0.20±
5% 0.25±
5% 0.30±
5% 0.35±
5% 0.40±
5% 0.49±
5%
temperature coefficient of resistance x
10-5/K
(20~600℃) <120 <100 <60 <57 <38 <50 <38 <25
<16 <10 0 <-6
Specific Heat Capacity
J/(g ·K) 0.38 0.38 0.38 0.38 0.39 0.38 0.38 0.38
0.38 0.39 0.40 0.41

III. Application
Such as
Standard resistors,
common resistors,
shunts,
relays and resistance elements in instruments and meters

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Super Invar 32-5, Permalloy Alloy 50, Manganese Copper Alloy, Kovar Alloy,
Invar 42, HYMU 80 Strip, Constantan Alloy CuNi44, and Hiperco 50A—each
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